Integer to String in TS.

export const numToString = (num: number): string => {
    const sign = num < 0 ? '-' : '';
    let myNum = num < 0 ? (-1 * num) : num;
    let output = "";

    while (myNum > 0) {
        const lastDigit = myNum % 10;
        output = String.fromCharCode(lastDigit + 48) + output;
        myNum = ~~(myNum / 10);
    }

    return sign + output;
}